Mitsubishi Electric SUZ-KA09NA2 Service Manual page 28

10-6. TEST POINT DIAGRAM AND VOLTAGE
Inverter P.C. board
SUZ-KA09NA(H)2.MX SUZ-KA12NA(H)2.MX SUZ-KA15NA(H)2.MX
Back side of unit
208/230 VAC
Fuse (F901)
T3.15AL250V
Output to
drive outdoor
fan motor
(CN932)
Output to
drive
compressor
(LDU,
LDV,
LDW)
LED
Front side of unit
Defrost thermistor(RT61)
Ambient temperature thermistor(RT65)
Outdoor heat exchanger temperature thermistor(RT68)
100
90
80
70
60
50
40
30
20
10
0
-4 14 32 50
Temperature(°F)
OCH699A
Smoothing
capacitor (C63)
Smoothing
DB61
capacitor (C62)
260 - 370 VDC
(-) (+)
Discharge temperature thermistor (RT62)
800
700
600
500
400
300
200
100
0
32 50 68 86 104 122 140 158 176 194 212 230 248
68 86 104
Smoothing
capacitor (C61)
Fuse (F801)
T3.15AL250V
Temperature (°F)
28
R.V.coil Heater connector
(CN722)
(CN721)
(SUZ-KA09/
208/230 VAC
12/15NAH2)
Fuse (F701)
T3.15AL250V
Jumper wire for pre-
heat control setting
(JK)
Jumper wire for
changing defrost
setting (JS)
Fin temperature thermistor(RT64)
200
180
160
140
120
100
80
60
40
20
0
32 50 68 86 104 122 140 158 176
Temperature(°F)
208/230 VAC